Universal Container

### Added

- Added an optional per-container opening sound configured with a sound event
  ID. An empty value keeps the container silent.
- Added bilingual English and Chinese documentation to newly generated config
  files, including a list of common vanilla sound IDs.
- Added directional source-block support for facing and axis properties.

### Changed

- Increased the maximum container width from 12 to 16 columns and total
  capacity from 72 to 96 slots. The row limit remains 6 so the complete screen
  fits within a 320x240 scaled GUI.
- Extended the canonical config format to
  `[source_block, new_id, display_name, open_sound, rows, columns]` while
  retaining compatibility with legacy 3/4/5-value entries.

### 新增

- 每个容器可通过音效事件 ID 配置打开音效，留空则保持静音。
- 新生成的配置文件同时包含中文和英文说明，并列出常见原版音效 ID。
- 有方向或轴向属性的源方块现在会保留正确的放置方向。

### 变更

- 最大列数由 12 提高到 16，总容量由 72 提高到 96 格；行数仍限制为
  6，以确保完整界面可容纳在 320x240 的缩放 GUI 内。
- 标准配置格式增加 `open_sound` 字段，同时继续兼容旧版 3/4/5 项配置。